<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    html {
      height: 100%;
    }

    body {
      height: 100%;
    }

    .column {
      display: flex;
      flex-direction: column;
    }

    .row {
      display: flex;
      flex-direction: row;
      flex-wrap: wrap;
    }

    .top {
      width: 100%;
      justify-content: space-around;
      background-color: aquamarine;
    }

    .start {
      width: 70vw;
      justify-content: start;
      align-items: end;
      background-color: aqua;
    }

    .content {
      width: 100%;
      flex: 2;
      justify-content: space-between;
      background-color: bisque;
      position: absolute;
      top: 500px;
    }

    .sb {
      align-self: center;
    }
  </style>
</head>

<body>
  <div class="column">
    <div class="row top">

      <div><span> 250 </span></div>
      <div><span> 250 </span></div>
      <div><span> 250 </span></div>

    </div>
    <div class="row start">


      <div><span> 250 </span></div>
      <div><span> 250 </span></div>
      <div><span> 250 </span></div>

    </div>
    <div class="column content">

      <div><span> 250 </span></div>
      <div><span> 250 </span></div>
      <div class="sb"><span> 250 </span></div>
    </div>

    <div class="row">
      <div style="flex:1;background-color: aquamarine;">001</div>
      <div style="width: 30vw;">002</div>
      <div style="width: 70vw;">003</div>

    </div>

  </div>
</body>

</html>